Revo Mix - RadioLink AT9S PRO Manual

Radiolink Electronic Ltd
www.radiolink.com

5.3.2 REVO MIX:

This 5-point curve mix adds opposite rudder input to counteract the changes in torque when the speed and
collective pitch of the blades is changed.
Adjustability:
• Three separate curves available: normal for hovering; idle-ups 1 and 2 combined; and idle-3.
• Normal condition curves are editable in the BASIC menu for convenience.
• All curves may be adjusted in the ADVANCE menu.
• Correct mix is automatically selected in-flight with each condition and automatically activated when the
throttle setup for that condition is activated in the programming (i.e. THROTTLE HOLD or THR-CURVE.)
• To change which condition's curve is being edited, cursor up above POINT5 and select. For clarity, the name
of the condition currently active (switched on at the radio) is shown in parentheses behind the name of the
condition whose curve is being edited.
Revo. Mixing rates are 5-point curves. For a clockwise-turning rotor, the rudder is mixed in the clockwise
direction when collective pitch is increased; for counterclockwise-turning, the opposite. Change the operating
direction setting by changing the signs of the numbers in the curve from plus (+) to minus (-) and vice versa.
Suggested defaults:
Clockwise rotation: -20, -10, 0, +10, +20% from low throttle to high.
Counterclockwise rotation: +20, +10, 0, -10, -20% from low throttle to high.
Adjust to the actual values that work best for your model.
Revo. Curves for idle-ups are often v-shaped to provide proper rudder input with negative pitch and increased
throttle during inverted flight.(Rudder is needed to counter the reaction whenever there is increased torque. In
inverted flight, throttle stick below half has increased throttle and negative pitch, therefore increasing torque
and rotating the helicopter unless the revo. Mix is also increasing appropriately.)
Note: The throttle and pitch curves for the normal condition is always on. They cannot be inhibited. The
other four conditions are activated with their throttle curves or throttle hold.
• THR-CURV/NOR: Inputs the normal (NORM) throttle curve, which is usually not a linear response to
THROTTLE STICK motion. Adjusting point 4 of the curve adjusts the engine's RPM at the THROTTLE STICK
midpoint, the desired position for hovering. The other 6 points are then adjusted to create the desired idle and
maximum engine speed, and a smooth transition in-between.
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